BC Air Brake Practice Test 03

Taking the BC air brake practice test can be a nerve-wracking experience for those wanting to obtain their air brake endorsement. However, with proper preparation and practice, passing the official exam with flying colors is achievable. It is recommended to use certified training materials and take advantage of online practice tests to gain an in-depth understanding of the air brake system and regulations.

BC Air Brake Test 03

1 / 30

Which reservoir usually has the most contaminants in it?

The secondary reservoir

They all have the same amount

The primary reservoir

The supply reservoir

2 / 30

Where is the relay valve typically installed?

Beside the governor

Right beside the quick release valve

In front of the foot valve

Between the reservoir and the rear brake chambers

3 / 30

What is the most common type of parking brake in an air brake system?

The air parking brake

The spring parking brake

The hydraulic parking brake

The cable parking brake

4 / 30

What is the purpose of a dual air brake system?

Works better with tandem wheels

No advantage whatsoever

They are in all new vehicles

It allows the brake system to be divided into two independent sections with each section having its own supply, delivery, and exhaust ports

5 / 30

What does a quick release valve do?

It controls the air flow

It allows the brakes to release quickly and fully, by allowing the pressurized air to exhaust near the brake chambers

It stops the flow of air going into the reservoirs

None of the above

6 / 30

What is another name for the foot brake pedal?

Thread

Bar

Push rod

Treadle

7 / 30

What are the problems using the air brakes for parking?

Not enough air to hold the vehicle

The air will eventually leave the lines

Any loss of air pressure and a possible rollaway collision could happen

None of the above

8 / 30

What do one-way check valves do?

They allow air to flow from the supply reservoir to the primary and secondary reservoirs

They allow air to flow in both directions

They allow air to be exhausted through ports

None of the above

9 / 30

Some older vehicles are equipped with a low-air warning device near the top of the windshield that drops into the driver's view when air pressure drops. What is this?

A woggle

A wig-wag

A mig-mag

A toggle

10 / 30

In a dual air brake system, when brakes are applied, which section activates first?

Secondary tank first

Primary tank first

Both sections are activated

It doesn't matter as long as it works

11 / 30

At what point does the low-air warning device come on?

When air pressure drops below 80 psi

When air pressure drops below 60 psi

When air pressure drops below 50 psi

When air pressure drops below 20 psi

12 / 30

Typically, where is the low-air warning device connected to?

The supply reservoir

The primary reservoir

The biggest tank

The secondary reservoir

13 / 30

What happens when the driver releases the foot valve?

Air pressure in the brake chambers exhausts into the atmosphere

Air pressure build back up

None of the above

Air pressure in the brake lines remains constant

14 / 30

What is another name for manually releasing an applied spring parking brake?

Pulling

Caging

Sweeping

Pushing

15 / 30

What is the name of the line that air flows from the foot valve to the foundation brakes?

Governor line

Discharge line

Delivery line

Supply line

16 / 30

What is meant by compounding air brakes?

When the park brake is not working

When the service brake is not working

When a service brake application is made with the park brake still applied

When the park brake is released at the same time as the service brake

17 / 30

If the low-air pressure warning light comes on, what should you do?

None of the above

Pull over and stop

Keep going but allow five times more to stop

Allow the compressor to build up more air before you stop

18 / 30

If there are two reservoirs, how many pressure gauges are there?

One

Two

Four

Three

19 / 30

In a dual air brake system, where is the air from the primary tank applied to?

To the front axle brakes

To both front and rear axle brakes

To the rear axle brakes

To whichever brakes need to be applied first

20 / 30

When should caging of park brake actually be done?

Only in an emergency

Once you've traveled 160 km during that trip

Prior to leaving on your daily trip

Every 500 km

21 / 30

What type of vehicle are safety actuators typically used on?

Large tractor trailers

Buses and highway coaches

Dump trucks

Fire trucks

22 / 30

What is the purpose of the relay valve?

To push air through the lines

To reduce the lag time when the brakes are applied, and when they're released

To relay computerized messages from the brakes to the gauges

To help apply the brakes quicker

23 / 30

Does the foot control valve have the ability to maintain the application pressure that you've chosen, even if there is a small leak downstream from the foot valve?

Up to 5 seconds maximum

Yes

Just for 2 to 3 seconds

24 / 30

Other than a leak, what could cause low-air pressure?

If the air lines are too thin

If you apply the brakes repeatedly and have used up the air supply more rapidly than the compressor can replenish it

If the compressor is overheating

If the compressor is too small

25 / 30

What's another name for a drain valve?

Drain releases

Drain holes

Drain cocks

Drain stems

26 / 30

What is the second type of parking brake in an air brake system known as?

Air-over hydraulic

Safety actuator

Cable

None of the above

27 / 30

Many vehicles have a single gauge with two needles, indicating the pressure in which reservoirs?

Supply reservoir and secondary reservoirs

Supply and primary reservoir

Primary and secondary reservoirs

Supply reservoir only but use for psi and kPa

28 / 30

How long have dual air brake systems been in use?

Since early 2000's

The last ten years

Since the mid-1970'

Since 1992

29 / 30

In a dual air brake system, if one of the system totally fails, is the driver able to make a controlled stop?

Not unless the parking/emergency brake is also applied

Yes

Yes, but it will be much longer

30 / 30

How often should you drain reservoirs?

Monthly

Weekly

Daily

Every 48 hours

Your score is

BC Air Brake Practice Test 03

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